chrono::fea::ChContinuumElastoplastic Class Referenceabstract
Description
Class for all elastic materials that can undergo plastic flow.
Defines simply some interface functions.
#include <ChContinuumMaterial.h>
Inheritance diagram for chrono::fea::ChContinuumElastoplastic:
Collaboration diagram for chrono::fea::ChContinuumElastoplastic:
Public Member Functions | |
| ChContinuumElastoplastic (double young=10000000, double poisson=0.4, double density=1000) | |
| virtual double | ComputeYieldFunction (const ChStressTensor<> &stress) const =0 |
| Return a scalar value that is 0 on the yield surface, <0 inside (elastic), >0 outside (incompatible->plastic flow). | |
| virtual void | ComputePlasticStrainFlow (ChStrainTensor<> &plasticstrainflow, const ChStrainTensor<> &totstrain) const =0 |
| Compute plastic strain flow (flow derivative dE_plast/dt) from strain, according to VonMises strain yield theory. | |
| virtual void | ComputeReturnMapping (ChStrainTensor<> &plasticstrainflow, const ChStrainTensor<> &incrementstrain, const ChStrainTensor<> &lastelasticstrain, const ChStrainTensor<> &lastplasticstrain) const =0 |
| Correct the strain-stress by enforcing that elastic stress must remain on the yield surface, computing a plastic flow to be added to plastic strain while integrating. | |
| virtual void | SetPlasticFlowRate (double flow_rate)=0 |
| Set the plastic flow rate, i.e. | |
| virtual double | GetPlasticFlowRate () const =0 |
| Set the plastic flow rate. | |
| virtual void | ArchiveOut (ChArchiveOut &archive_out) override |
| virtual void | ArchiveIn (ChArchiveIn &archive_in) override |
| Public Member Functions inherited from chrono::fea::ChContinuumElastic | |
| ChContinuumElastic (double young=10000000, double poisson=0.4, double density=1000) | |
| ChContinuumElastic (const ChContinuumElastic &other) | |
| void | SetYoungModulus (double E) |
| Set the Young elastic modulus, in Pa (N/m^2), as the ratio of the uniaxial stress over the uniaxial strain, for hookean materials. | |
| double | GetYoungModulus () const |
| Get the Young elastic modulus, in Pa (N/m^2). | |
| void | SetPoissonRatio (double v) |
| Set the Poisson ratio, as v=-transverse_strain/axial_strain, so takes into account the 'squeezing' effect of materials that are pulled. | |
| double | GetPoissonRatio () const |
| Get the Poisson ratio, as v=-transverse_strain/axial_strain. | |
| void | SetShearModulus (double G) |
| Set the shear modulus G, in Pa (N/m^2). | |
| double | GetShearModulus () const |
| Get the shear modulus G, in Pa (N/m^2). | |
| double | GetLameFirstParam () const |
| Get Lamé first parameter (the second is shear modulus, so GetShearModulus() ). | |
| double | GetBulkModulus () const |
| Get bulk modulus (increase of pressure for decrease of volume), in Pa. | |
| double | GetPWaveModulus () const |
| Get P-wave modulus (if V=speed of propagation of a P-wave, then (M/density)=V^2 ). | |
| void | ComputeStressStrainMatrix () |
| Computes Elasticity matrix and stores the value in this->StressStrainMatrix Note: is performed every time you change a material parameter. | |
| ChMatrixDynamic & | GetStressStrainMatrix () |
| Get the Elasticity matrix. | |
| void | ComputeElasticStress (ChStressTensor<> &stress, const ChStrainTensor<> &strain) const |
| Compute elastic stress from elastic strain (using column tensors, in Voight notation). | |
| void | ComputeElasticStrain (ChStrainTensor<> &strain, const ChStressTensor<> &stress) const |
| Compute elastic strain from elastic stress (using column tensors, in Voight notation). | |
| void | SetRayleighDampingAlpha (double alpha) |
| Set the Rayleigh mass-proportional damping factor alpha, to build damping R as R=alpha*M + beta*K. | |
| double | GetRayleighDampingAlpha () const |
| Set the Rayleigh mass-proportional damping factor alpha, in R=alpha*M + beta*K. | |
| void | SetRayleighDampingBeta (double beta) |
| Set the Rayleigh stiffness-proportional damping factor beta, to build damping R as R=alpha*M + beta*K. | |
| double | GetRayleighDampingBeta () const |
| Set the Rayleigh stiffness-proportional damping factor beta, in R=alpha*M + beta*K. | |
| Public Member Functions inherited from chrono::fea::ChContinuumMaterial | |
| ChContinuumMaterial (double density=1000) | |
| ChContinuumMaterial (const ChContinuumMaterial &other) | |
| void | SetDensity (double density) |
| Set the density of the material, in kg/m^2. | |
| double | GetDensity () const |
| Get the density of the material, in kg/m^2. | |
Additional Inherited Members | |
| Protected Attributes inherited from chrono::fea::ChContinuumMaterial | |
| double | m_density |
Member Function Documentation
◆ ArchiveIn()
|
overridevirtual |
Reimplemented from chrono::fea::ChContinuumElastic.
◆ ArchiveOut()
|
overridevirtual |
Reimplemented from chrono::fea::ChContinuumElastic.
◆ ComputePlasticStrainFlow()
|
pure virtual |
Compute plastic strain flow (flow derivative dE_plast/dt) from strain, according to VonMises strain yield theory.
Implemented in chrono::fea::ChContinuumDruckerPrager, and chrono::fea::ChContinuumPlasticVonMises.
◆ ComputeReturnMapping()
|
pure virtual |
Correct the strain-stress by enforcing that elastic stress must remain on the yield surface, computing a plastic flow to be added to plastic strain while integrating.
Implemented in chrono::fea::ChContinuumDruckerPrager, and chrono::fea::ChContinuumPlasticVonMises.
◆ ComputeYieldFunction()
|
pure virtual |
Return a scalar value that is 0 on the yield surface, <0 inside (elastic), >0 outside (incompatible->plastic flow).
Implemented in chrono::fea::ChContinuumDruckerPrager, and chrono::fea::ChContinuumPlasticVonMises.
◆ GetPlasticFlowRate()
|
pure virtual |
Set the plastic flow rate.
Implemented in chrono::fea::ChContinuumDruckerPrager, and chrono::fea::ChContinuumPlasticVonMises.
◆ SetPlasticFlowRate()
|
pure virtual |
Set the plastic flow rate, i.e.
the 'creep' speed. The lower the value, the slower the plastic flow during dynamic simulations, with delayed plasticity.
Implemented in chrono::fea::ChContinuumDruckerPrager, and chrono::fea::ChContinuumPlasticVonMises.
The documentation for this class was generated from the following files:
- D:/W/B/src/chrono-9.0.1/src/chrono/fea/ChContinuumMaterial.h
- D:/W/B/src/chrono-9.0.1/src/chrono/fea/ChContinuumMaterial.cpp
